Pro Sites plugin ending pro status's

Hi

Pro sites started acting strangely yesterday and has been withdrawing pro statuses when it shouldn't.

- Some pro trials have been ended early
- Paid subscriptions have been ended early
- Some trials that were due to end before yesterday only had their pro status withdrawn yesterday
- Some users whose pro status was withdrawn yesterday when it shouldn't have then used bulk credits to get the pro status back and it then withdrew the pro status again

There doesn't seem to be any pattern to the accounts it has affected and has affected quite a few, but not all of the blogs. It is still happening today.

We are currently using version 3.4 of the plugin.

Do you have any idea as to what may be causing this to happen?

Please can you get back to me ASAP as this is very urgent.

Many thanks
Emma